An effective and energy saving heating system needs many control devices, such as flow controllers and differential pressure controllers.
每一个有效节能的供热系统都配有相应的调节控制设备，如自力式流量控制阀、压差控制阀等。
The capacity of controllers' working memories, thus, varies depending on (at least) experience, task demands, and time pressure.
管制员的工作记忆是随着经验、任务需要和时间压力而改变的。
Instrumentation in the new plant includes Rosemount temperature and pressure transmitters, Micro Motion mass flowmeters, and FIELDVUE digital valve controllers mounted on Fisher control valves.
新工厂中的仪表装置包括Rosemount温度和压力变送器、Micro Motion质量流量计以及配有FIELDVUE数字阀门定位器的Fisher控制阀。
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